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What are functional beverages?

A functional beverage is a drink with an ingredient chosen for more than flavor. Here's what's on the shelf, and how to choose.

By The Functional Sip · Updated October 2, 2026
An herbal iced drink with a straw
The short answer
A functional beverage is a drink with added ingredients chosen for a purpose beyond taste or hydration, like kava, kanna, adaptogens, mushrooms or L-theanine. The most interesting ones replace a moment you used to fill with alcohol or coffee.

The short definition

Every drink does something: hydrates, wakes you up, tastes good. A functional beverage adds an ingredient chosen for a specific purpose. Electrolyte drinks were the first wave. Today the shelf is full of botanicals and adaptogens.

The main types

How to choose

Start with the moment, not the ingredient. What are you trying to replace: the after-work beer, the 3pm coffee, the glass of wine at dinner? Then pick the category built for it.

Questions people ask

What is a functional beverage?

A drink with an added ingredient chosen for a purpose beyond flavor or hydration, like kava, kanna, adaptogens or mushrooms.

Are functional beverages healthy?

It depends on the drink. Check sugar, caffeine and ingredients, and talk to your doctor if you take medication.

What's the most popular functional drink right now?

Kava drinks and adaptogen sodas are two of the fastest-growing categories, alongside mushroom coffee.